Refrigeration & Air Conditioning Mechanic Red Seal · Question
Which type of motor is commonly used for large commercial and industrial refrigeration compressors due to its high efficiency and constant speed characteristics?
Three-phase induction motors are robust, efficient, and provide reliable, constant speed operation, making them ideal for larger compressor applications.
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Question: Which type of motor is commonly used for large commercial and industrial refrigeration compressors due to its high efficiency and constant speed characteristics?
Answer options: ✅ Three-phase induction motor
- Split-phase motor
- Capacitor-start, induction-run motor
- Shaded-pole motor
Correct answer: Three-phase induction motor
Explanation: Three-phase induction motors are robust, efficient, and provide reliable, constant speed operation, making them ideal for larger compressor applications.
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Question explanations
- Which of the following refrigerants is a hydrofluorocarbon (HFC) and has a high ozone depletion potential (ODP
- Which component is responsible for compressing the refrigerant vapour to a high pressure and temperature?
- According to the Canadian Electrical Code (CEC), what is the minimum required working clearance in front of el
- What is the main operating characteristic difference between a fixed orifice (capillary tube) and a Thermostat
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